Question

__________ will be the edges of inclined or oblique planes of an object as represented in a multi-view drawing.

(a) Inclined lines

(b) Non-isometric lines

(c) Isometric lines

(d) Curved lines

I got this question during an online interview.

The doubt is from Isometric Projection in section Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing

Answer 1

Correct choice is (b) Non-isometric lines

Best explanation: Non-isometric lines will be the edges of inclined or oblique planes of an object as represented in a multi-view drawing. It is not possible to measure the length or angle from an inclined or oblique line in a multi-view drawing and then transferring these distances to draw the line in an isometric drawing. Instead, non-isometric lines must be drawn by locating the two end points of the lines on isometric lines and then connecting these end points with a line.  The process used is called offset measurement, which is a method of locating one point by projecting another point.